In a trunked radio frequency communications system, an arrangement dynamically "expands" or extends the frequency allocation table stored within the "personality" defining non-volatile storage device of transceivers to include additional RF channels. A channel configuration control message specifying...http://www.google.fr/patents/US5077828?utm_source=gb-gplus-shareBrevet US5077828 - RF channel expansion in a trunked radio communications system
RF channel expansion in a trunked radio communications system
